Cechenena mirabilis is a moth of the family Sphingidae. It is known from the Himalayas in India. It differs from all other Cechenena species by the blue-green ground colour of the forewing upperside which is overlain by a dark green basal and median pattern. There is a H-shaped patch just distal to the small and indistinct pale discal spot. The thorax upperside is dark green and there are no dorsal lines on the abdomen.